127816 has 16 divisors (see below), whose sum is σ = 258300. Its totient is φ = 58944.

The previous prime is 127807. The next prime is 127817. The reversal of 127816 is 618721.

It can be written as a sum of positive squares in 2 ways, for example, as 125316 + 2500 = 354^2 + 50^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (127817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 511 + ... + 718.

2¹²⁷⁸¹⁶ is an apocalyptic number.

It is an amenable number.

127816 is an abundant number, since it is smaller than the sum of its proper divisors (130484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

127816 is a wasteful number, since it uses less digits than its factorization.

127816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248 (or 1244 counting only the distinct ones).

The product of its digits is 672, while the sum is 25.

The square root of 127816 is about 357.5136361036. The cubic root of 127816 is about 50.3726819286.

The spelling of 127816 in words is "one hundred twenty-seven thousand, eight hundred sixteen".